Kousai Shirato

- Developed the user interface for a trading application focused on concurrency and commodity trading, implementing features such as a news feed, chat screen, price chart, and order placement screen.
- Revolutionized the fintech space by designing an advanced web interface for cryptocurrency trading and token management, achieving optimal performance and high user experience scores.
- Engineered scalable frontend architectures that adapt to various user demands and market conditions.
- Increased user engagement and customer satisfaction scores by prioritizing and improving the user experience through UI/UX design best practices.
- Reduced data refresh times by leveraging cutting-edge technologies to achieve rapid data updates across a multi-pane interface.
- Diligently documented and upheld software functionality, ensuring clarity and reliability across applications.
- Created a full-functional back-end engine, smoothly integrated with front-end endpoints and smart contracts.
- Wrote Unit test using Jest and integrated Jenkins to Git where the build triggers automatically when push a pull request for CI/CD.
- Created docker files, built docker images for microservices files to run Kubernetes Platform.
Technologies : JavaScript, TypeScript, React, Redux, Storybook, Jest, Node.js, Polkadot, Smart Contracts, Solana, Rust, Go, Cosmos SDK, Git, Kubernetes, Docker, IPFS, Trading Systems, GraphQL

- Collaborated with Designers and Created shared components and published it to NPM.
- Created a user interface using Figma design with user-friendly multi-step form using shared components.
- Implemented wallet connection using Web3.js.
- Created some API endpoints to integrate NFT mint, list, buy, sell and auction functions using Node.js, GraphQL, Apollo GraphQL, Axios in backend.
- Implemented Live video conferencing & collaboration functions using WebRTC.
- Created an admin panel to manage user accounts and their action.
- Implemented interaction with Ethereum smart contracts using Web3.js.
- Wrote unit test code using Jest and integrated it into the CI/CD process.
Technologies : Vue.js, Vuex, Nuxt, Storybook, Jest, Tailwind CSS, MUI, Node.js, Soket.io, Solidity, Web3.js, Smart Contracts, Ethereum, WebRTC, GraphQL

- Created front-end and back-end to a email-like messaging protocol for Web3.
- Introduced the embedded wallet system to provide a user-friendly wallet integration system.
- Implemented to send and receive messages to users via Ethereum addresses.
- Developed the full back-end APIs using Node.js via Nest.js and PostgresSQL.
- Created majority of the front-end with React.js, ChakraUI.
- Created preview.inbox3.io page and integrate with wallet.
Technologies : JavaScript, TypeScript, React.js, Redux, Next.js, ChakraUI, Node.js, Nest.js, PostgreSQL, Solidity, Ethers.js, Ethereum, REST APIs, Amazon Web Services (AWS), Docker

- Upgraded the existing service with new functionality and user interface.
- Developed new RESTful API services that work as middleware between our application and third-party APIs that we will use.
- Using GO, developed a microservice for reading a large volume of data from database.
- Designed configurable REST APIs on demand and worked on numerous go frameworks like gin, revel, and beego.
- Added new features, widgets, and functionality.
- Integrated Jenkins to git where the build triggers automatically when we push a pull request for CI/CD.
- Developed payment and invoice system from scratch.
- Created the mobile version and integrated it with back-end APIs.
- Handled global optimization and worked with a team (manager, software engineer, and SEO specialist).
- Developed debugged Go GoLang plugins for GoCD pipelines.
Technologies : Golang, gin, revel, beego, IONIC, GraphQL

- Caspar Health is an online platform that is trying to shape the future of prevention and rehabilitation.
- The product is used by 81 clinics in Europe and Asia and helps all of their 35,000 patients receive the best quality care-both during and after their hospital stay.
- While working for Goreha/Caspar, Helped with the development of the company's website which contains the main product and service information.
- Developed RESTFUL/WCF Web services, APIs, and other back-end components.
- The platform consists of multilingual patient and clinic web applications built.
- Developed and Deployed applications on Application Servers like Nginx.
Technologies : Django framework, Python, Python libraries, MySQL, PostgreSQL, LINUX, Git, MVC and MVT

- Converted a traditional web application to a single-page application using AJAX and a state management layer in JavaScript.
- Wrote an interior door cost-calculating module for offline stores and developed a truck axis load calculator.
- Wrote a framework to generate new custom websites with a custom database back-end for improved rollout and prototyping.
- Created a reusable WebRTC voice call service from a site module.
- Worked with the business development manager on breaking down new business models into realistic technical tasks with a clear roadmap.
Technologies : Html, CSS, JavaScript, PHP, MySQL, WebRTC, Lamp